Something is seriously wrong with your setup.  Please put your master logs 
somewhere we can pull from.   Enable debug too.  Thanks



On Jun 29, 2010, at 10:29 AM, Stanislaw Kogut <[email protected]> wrote:

> 1. Stopping hbase
> 2. Removing hbase.root.dir from hdfs
> 3. Starting hbase
> 4. Doing major_compact on .META.
> 5. Starting PE
> 
> 10/06/29 20:17:30 INFO hbase.PerformanceEvaluation: Table {NAME =>
> 'TestTable', FAMILIES => [{NAME => 'info', COMPRESSION => 'NONE', VERSIONS
> => '3', TTL => '2147483647', BLOCKSIZE => '65536', IN_MEMORY => 'false',
> BLOCKCACHE => 'true'}]} created
> 10/06/29 20:17:30 INFO hbase.PerformanceEvaluation: Start class
> org.apache.hadoop.hbase.PerformanceEvaluation$SequentialWriteTest at offset
> 0 for 1048576 rows
> 10/06/29 20:17:42 INFO hbase.PerformanceEvaluation: 0/104857/1048576
> 10/06/29 20:17:55 INFO hbase.PerformanceEvaluation: 0/209714/1048576
> 10/06/29 20:18:13 INFO hbase.PerformanceEvaluation: 0/314571/1048576
> 10/06/29 20:18:29 INFO hbase.PerformanceEvaluation: 0/419428/1048576
> 10/06/29 20:22:37 ERROR hbase.PerformanceEvaluation: Failed
> org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to contact
> region server  -- nothing found, no 'location' returned,
> tableName=TestTable, reload=true -- for region , row '0000511450', but
> failed after 11 attempts.
> Exceptions:
> java.io.IOException: HRegionInfo was null or empty in .META.
> org.apache.hadoop.hbase.TableNotFoundException: TestTable
> org.apache.hadoop.hbase.TableNotFoundException: TestTable
> org.apache.hadoop.hbase.TableNotFoundException: TestTable
> org.apache.hadoop.hbase.TableNotFoundException: TestTable
> org.apache.hadoop.hbase.TableNotFoundException: TestTable
> org.apache.hadoop.hbase.TableNotFoundException: TestTable
> org.apache.hadoop.hbase.TableNotFoundException: TestTable
> org.apache.hadoop.hbase.TableNotFoundException: TestTable
> org.apache.hadoop.hbase.TableNotFoundException: TestTable
> 
>    at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegionLocationForRowWithRetries(HConnectionManager.java:1087)
>    at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.access$200(HConnectionManager.java:240)
>    at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers$Batch.getRegionName(HConnectionManager.java:1183)
>    at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers$Batch.process(HConnectionManager.java:1160)
>    at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.processBatchOfRows(HConnectionManager.java:1230)
>    at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:666)
>    at
> org.apache.hadoop.hbase.PerformanceEvaluation$Test.testTakedown(PerformanceEvaluation.java:621)
>    at
> org.apache.hadoop.hbase.PerformanceEvaluation$Test.test(PerformanceEvaluation.java:637)
>    at
> org.apache.hadoop.hbase.PerformanceEvaluation.runOneClient(PerformanceEvaluation.java:889)
>    at
> org.apache.hadoop.hbase.PerformanceEvaluation.runNIsOne(PerformanceEvaluation.java:907)
>    at
> org.apache.hadoop.hbase.PerformanceEvaluation.runTest(PerformanceEvaluation.java:939)
>    at
> org.apache.hadoop.hbase.PerformanceEvaluation.doCommandLine(PerformanceEvaluation.java:1036)
>    at
> org.apache.hadoop.hbase.PerformanceEvaluation.main(PerformanceEvaluation.java:1061)
>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>    at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>    at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>    at java.lang.reflect.Method.invoke(Method.java:597)
>    at org.apache.hadoop.util.RunJar.main(RunJar.java:186)
> 
> 
> On Tue, Jun 29, 2010 at 8:03 PM, Stack <[email protected]> wrote:
> 
>> For sure you are removing the hbase dir in hdfs?
>> 
>> Try major compaction of your .META. table?
>> 
>> hbase> major_compact ".META."
>> 
>> You seem to be suffering  HBASE-1880 but if you are removing the hbase
>> dir, you shouldn't be running into this.
>> 
>> St.Ack
>> 
>> 
> -- 
> Regards,
> Stanislaw Kogut
> Sistyma LLC

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